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# 1 = 2 revisited

### #1

Posted 21 January 2013 - 11:35 AM

This demonstration probably occurs multiple times in the history of this forum.

Its fallacy depends on embedding, and cleverly hiding somewhere in the "analysis," a division by zero.

Which of course is not permitted. So regarding this matter our world is still a safe abode.

Nonetheless, this equality still has a life for puzzle solvers.

By the application of a familiar proof, the addition of a single well-known mathematical symbol,

and without resorting to prohibited mathematical operations, 1=2 can still be shown to be true.

Have fun, and please use spoilers.

*A leader's credentials do not hang on his wall. They are written by the lives of those he has led.*

### #2

Posted 21 January 2013 - 07:22 PM

### #3

Posted 21 January 2013 - 08:17 PM

### #4

Posted 22 January 2013 - 12:52 AM

### #5

Posted 22 January 2013 - 01:00 AM

Spoiler for a solid=solid induction=induction proof'=proof

Counter example to this proof =)

### #6

Posted 22 January 2013 - 01:05 AM

Spoiler for a solid=solid induction=induction proof'=proof

Counter example to this proof =)

Spoiler for

### #7

Posted 22 January 2013 - 09:24 PM

Good thinking so far, but it's not as complicated as it looks.

You'll just have to go a bit more outside the box.

*A leader's credentials do not hang on his wall. They are written by the lives of those he has led.*

### #8

Posted 23 January 2013 - 05:55 AM

Spoiler for Here's one

Actually not bad.

But not the solution I had in mind.

*A leader's credentials do not hang on his wall. They are written by the lives of those he has led.*

### #9

Posted 23 January 2013 - 08:33 PM

### #10

Posted 23 January 2013 - 09:01 PM

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